Lines Matching refs:conn
48 if (atomic_read(&smc->conn.sndbuf_space) && sock) { in smc_tx_write_space()
50 SMC_STAT_RMB_TX_FULL(smc, !smc->conn.lnk); in smc_tx_write_space()
80 struct smc_connection *conn = &smc->conn; in smc_tx_wait() local
92 conn->killed || in smc_tx_wait()
93 conn->local_tx_ctrl.conn_state_flags.peer_done_writing) { in smc_tx_wait()
97 if (smc_cdc_rxed_any_close(conn)) { in smc_tx_wait()
112 if (atomic_read(&conn->sndbuf_space) && !conn->urg_tx_pend) in smc_tx_wait()
118 smc_cdc_rxed_any_close(conn) || in smc_tx_wait()
119 (atomic_read(&conn->sndbuf_space) && in smc_tx_wait()
120 !conn->urg_tx_pend), in smc_tx_wait()
147 struct smc_connection *conn = &smc->conn; in smc_should_autocork() local
150 corking_size = min_t(unsigned int, conn->sndbuf_desc->len >> 1, in smc_should_autocork()
153 if (atomic_read(&conn->cdc_pend_tx_wr) == 0 || in smc_should_autocork()
154 smc_tx_prepared_sends(conn) > corking_size) in smc_should_autocork()
161 struct smc_connection *conn = &smc->conn; in smc_tx_should_cork() local
173 atomic_read(&conn->sndbuf_space)) in smc_tx_should_cork()
186 struct smc_connection *conn = &smc->conn; in smc_tx_sendmsg() local
205 if (len > conn->sndbuf_desc->len) in smc_tx_sendmsg()
206 SMC_STAT_RMB_TX_SIZE_SMALL(smc, !conn->lnk); in smc_tx_sendmsg()
208 if (len > conn->peer_rmbe_size) in smc_tx_sendmsg()
209 SMC_STAT_RMB_TX_PEER_SIZE_SMALL(smc, !conn->lnk); in smc_tx_sendmsg()
217 conn->killed) in smc_tx_sendmsg()
219 if (smc_cdc_rxed_any_close(conn)) in smc_tx_sendmsg()
223 conn->local_tx_ctrl.prod_flags.urg_data_pending = 1; in smc_tx_sendmsg()
225 if (!atomic_read(&conn->sndbuf_space) || conn->urg_tx_pend) { in smc_tx_sendmsg()
236 writespace = atomic_read(&conn->sndbuf_space); in smc_tx_sendmsg()
240 sndbuf_base = conn->sndbuf_desc->cpu_addr; in smc_tx_sendmsg()
241 smc_curs_copy(&prep, &conn->tx_curs_prep, conn); in smc_tx_sendmsg()
245 chunk_len = min_t(size_t, copylen, conn->sndbuf_desc->len - in smc_tx_sendmsg()
253 smc_sndbuf_sync_sg_for_device(conn); in smc_tx_sendmsg()
268 smc_sndbuf_sync_sg_for_device(conn); in smc_tx_sendmsg()
270 smc_curs_add(conn->sndbuf_desc->len, &prep, copylen); in smc_tx_sendmsg()
271 smc_curs_copy(&conn->tx_curs_prep, &prep, conn); in smc_tx_sendmsg()
274 atomic_sub(copylen, &conn->sndbuf_space); in smc_tx_sendmsg()
281 conn->urg_tx_pend = true; in smc_tx_sendmsg()
286 smc_tx_sndbuf_nonempty(conn); in smc_tx_sendmsg()
320 int smcd_tx_ism_write(struct smc_connection *conn, void *data, size_t len, in smcd_tx_ism_write() argument
325 rc = smc_ism_write(conn->lgr->smcd, conn->peer_token, in smcd_tx_ism_write()
326 conn->peer_rmbe_idx, signal, conn->tx_off + offset, in smcd_tx_ism_write()
329 conn->local_tx_ctrl.conn_state_flags.peer_conn_abort = 1; in smcd_tx_ism_write()
334 static int smc_tx_rdma_write(struct smc_connection *conn, int peer_rmbe_offset, in smc_tx_rdma_write() argument
337 struct smc_link_group *lgr = conn->lgr; in smc_tx_rdma_write()
338 struct smc_link *link = conn->lnk; in smc_tx_rdma_write()
344 lgr->rtokens[conn->rtoken_idx][link->link_idx].dma_addr + in smc_tx_rdma_write()
346 conn->tx_off + in smc_tx_rdma_write()
349 rdma_wr->rkey = lgr->rtokens[conn->rtoken_idx][link->link_idx].rkey; in smc_tx_rdma_write()
357 static inline void smc_tx_advance_cursors(struct smc_connection *conn, in smc_tx_advance_cursors() argument
362 smc_curs_add(conn->peer_rmbe_size, prod, len); in smc_tx_advance_cursors()
366 atomic_sub(len, &conn->peer_rmbe_space); in smc_tx_advance_cursors()
369 smc_curs_add(conn->sndbuf_desc->len, sent, len); in smc_tx_advance_cursors()
373 static int smcr_tx_rdma_writes(struct smc_connection *conn, size_t len, in smcr_tx_rdma_writes() argument
378 struct smc_link *link = conn->lnk; in smcr_tx_rdma_writes()
381 sg_dma_address(conn->sndbuf_desc->sgt[link->link_idx].sgl); in smcr_tx_rdma_writes()
382 u64 virt_addr = (uintptr_t)conn->sndbuf_desc->cpu_addr; in smcr_tx_rdma_writes()
403 sge[srcchunk].addr = conn->sndbuf_desc->is_vm ? in smcr_tx_rdma_writes()
406 if (conn->sndbuf_desc->is_vm) in smcr_tx_rdma_writes()
408 conn->sndbuf_desc->mr[link->link_idx]->lkey; in smcr_tx_rdma_writes()
412 if (src_off >= conn->sndbuf_desc->len) in smcr_tx_rdma_writes()
413 src_off -= conn->sndbuf_desc->len; in smcr_tx_rdma_writes()
421 rc = smc_tx_rdma_write(conn, dst_off, num_sges, wr); in smcr_tx_rdma_writes()
430 src_len = min_t(int, dst_len, conn->sndbuf_desc->len - in smcr_tx_rdma_writes()
438 static int smcd_tx_rdma_writes(struct smc_connection *conn, size_t len, in smcd_tx_rdma_writes() argument
448 void *data = conn->sndbuf_desc->cpu_addr + src_off; in smcd_tx_rdma_writes()
450 rc = smcd_tx_ism_write(conn, data, src_len, dst_off + in smcd_tx_rdma_writes()
456 if (src_off >= conn->sndbuf_desc->len) in smcd_tx_rdma_writes()
457 src_off -= conn->sndbuf_desc->len; in smcd_tx_rdma_writes()
471 src_len = min_t(int, dst_len, conn->sndbuf_desc->len - src_off); in smcd_tx_rdma_writes()
480 static int smc_tx_rdma_writes(struct smc_connection *conn, in smc_tx_rdma_writes() argument
490 smc_curs_copy(&sent, &conn->tx_curs_sent, conn); in smc_tx_rdma_writes()
491 smc_curs_copy(&prep, &conn->tx_curs_prep, conn); in smc_tx_rdma_writes()
493 to_send = smc_curs_diff(conn->sndbuf_desc->len, &sent, &prep); in smc_tx_rdma_writes()
499 rmbespace = atomic_read(&conn->peer_rmbe_space); in smc_tx_rdma_writes()
501 struct smc_sock *smc = container_of(conn, struct smc_sock, in smc_tx_rdma_writes()
502 conn); in smc_tx_rdma_writes()
503 SMC_STAT_RMB_TX_PEER_FULL(smc, !conn->lnk); in smc_tx_rdma_writes()
506 smc_curs_copy(&prod, &conn->local_tx_ctrl.prod, conn); in smc_tx_rdma_writes()
507 smc_curs_copy(&cons, &conn->local_rx_ctrl.cons, conn); in smc_tx_rdma_writes()
510 pflags = &conn->local_tx_ctrl.prod_flags; in smc_tx_rdma_writes()
524 conn->peer_rmbe_size - prod.count, len); in smc_tx_rdma_writes()
533 if (sent.count + dst_len <= conn->sndbuf_desc->len) { in smc_tx_rdma_writes()
538 src_len = conn->sndbuf_desc->len - sent.count; in smc_tx_rdma_writes()
541 if (conn->lgr->is_smcd) in smc_tx_rdma_writes()
542 rc = smcd_tx_rdma_writes(conn, len, sent.count, src_len, in smc_tx_rdma_writes()
545 rc = smcr_tx_rdma_writes(conn, len, sent.count, src_len, in smc_tx_rdma_writes()
550 if (conn->urg_tx_pend && len == to_send) in smc_tx_rdma_writes()
552 smc_tx_advance_cursors(conn, &prod, &sent, len); in smc_tx_rdma_writes()
554 smc_curs_copy(&conn->local_tx_ctrl.prod, &prod, conn); in smc_tx_rdma_writes()
556 smc_curs_copy(&conn->tx_curs_sent, &sent, conn);/* src: local sndbuf */ in smc_tx_rdma_writes()
564 static int smcr_tx_sndbuf_nonempty(struct smc_connection *conn) in smcr_tx_sndbuf_nonempty() argument
566 struct smc_cdc_producer_flags *pflags = &conn->local_tx_ctrl.prod_flags; in smcr_tx_sndbuf_nonempty()
567 struct smc_link *link = conn->lnk; in smcr_tx_sndbuf_nonempty()
575 rc = smc_cdc_get_free_slot(conn, link, &wr_buf, &wr_rdma_buf, &pend); in smcr_tx_sndbuf_nonempty()
580 container_of(conn, struct smc_sock, conn); in smcr_tx_sndbuf_nonempty()
584 if (conn->killed) in smcr_tx_sndbuf_nonempty()
587 mod_delayed_work(conn->lgr->tx_wq, &conn->tx_work, in smcr_tx_sndbuf_nonempty()
593 spin_lock_bh(&conn->send_lock); in smcr_tx_sndbuf_nonempty()
594 if (link != conn->lnk) { in smcr_tx_sndbuf_nonempty()
602 rc = smc_tx_rdma_writes(conn, wr_rdma_buf); in smcr_tx_sndbuf_nonempty()
610 rc = smc_cdc_msg_send(conn, wr_buf, pend); in smcr_tx_sndbuf_nonempty()
617 spin_unlock_bh(&conn->send_lock); in smcr_tx_sndbuf_nonempty()
622 static int smcd_tx_sndbuf_nonempty(struct smc_connection *conn) in smcd_tx_sndbuf_nonempty() argument
624 struct smc_cdc_producer_flags *pflags = &conn->local_tx_ctrl.prod_flags; in smcd_tx_sndbuf_nonempty()
627 spin_lock_bh(&conn->send_lock); in smcd_tx_sndbuf_nonempty()
629 rc = smc_tx_rdma_writes(conn, NULL); in smcd_tx_sndbuf_nonempty()
631 rc = smcd_cdc_msg_send(conn); in smcd_tx_sndbuf_nonempty()
637 spin_unlock_bh(&conn->send_lock); in smcd_tx_sndbuf_nonempty()
641 static int __smc_tx_sndbuf_nonempty(struct smc_connection *conn) in __smc_tx_sndbuf_nonempty() argument
643 struct smc_sock *smc = container_of(conn, struct smc_sock, conn); in __smc_tx_sndbuf_nonempty()
647 if (unlikely(smc_tx_prepared_sends(conn) <= 0)) in __smc_tx_sndbuf_nonempty()
651 if (unlikely(atomic_read(&conn->peer_rmbe_space) <= 0)) { in __smc_tx_sndbuf_nonempty()
652 SMC_STAT_RMB_TX_PEER_FULL(smc, !conn->lnk); in __smc_tx_sndbuf_nonempty()
656 if (conn->killed || in __smc_tx_sndbuf_nonempty()
657 conn->local_rx_ctrl.conn_state_flags.peer_conn_abort) { in __smc_tx_sndbuf_nonempty()
661 if (conn->lgr->is_smcd) in __smc_tx_sndbuf_nonempty()
662 rc = smcd_tx_sndbuf_nonempty(conn); in __smc_tx_sndbuf_nonempty()
664 rc = smcr_tx_sndbuf_nonempty(conn); in __smc_tx_sndbuf_nonempty()
675 int smc_tx_sndbuf_nonempty(struct smc_connection *conn) in smc_tx_sndbuf_nonempty() argument
683 if (atomic_inc_return(&conn->tx_pushing) > 1) in smc_tx_sndbuf_nonempty()
687 atomic_set(&conn->tx_pushing, 1); in smc_tx_sndbuf_nonempty()
689 rc = __smc_tx_sndbuf_nonempty(conn); in smc_tx_sndbuf_nonempty()
697 if (unlikely(!atomic_dec_and_test(&conn->tx_pushing))) in smc_tx_sndbuf_nonempty()
707 void smc_tx_pending(struct smc_connection *conn) in smc_tx_pending() argument
709 struct smc_sock *smc = container_of(conn, struct smc_sock, conn); in smc_tx_pending()
715 rc = smc_tx_sndbuf_nonempty(conn); in smc_tx_pending()
716 if (!rc && conn->local_rx_ctrl.prod_flags.write_blocked && in smc_tx_pending()
717 !atomic_read(&conn->bytes_to_rcv)) in smc_tx_pending()
718 conn->local_rx_ctrl.prod_flags.write_blocked = 0; in smc_tx_pending()
727 struct smc_connection *conn = container_of(to_delayed_work(work), in smc_tx_work() local
730 struct smc_sock *smc = container_of(conn, struct smc_sock, conn); in smc_tx_work()
733 smc_tx_pending(conn); in smc_tx_work()
737 void smc_tx_consumer_update(struct smc_connection *conn, bool force) in smc_tx_consumer_update() argument
740 int sender_free = conn->rmb_desc->len; in smc_tx_consumer_update()
743 smc_curs_copy(&cons, &conn->local_tx_ctrl.cons, conn); in smc_tx_consumer_update()
744 smc_curs_copy(&cfed, &conn->rx_curs_confirmed, conn); in smc_tx_consumer_update()
745 to_confirm = smc_curs_diff(conn->rmb_desc->len, &cfed, &cons); in smc_tx_consumer_update()
746 if (to_confirm > conn->rmbe_update_limit) { in smc_tx_consumer_update()
747 smc_curs_copy(&prod, &conn->local_rx_ctrl.prod, conn); in smc_tx_consumer_update()
748 sender_free = conn->rmb_desc->len - in smc_tx_consumer_update()
749 smc_curs_diff_large(conn->rmb_desc->len, in smc_tx_consumer_update()
753 if (conn->local_rx_ctrl.prod_flags.cons_curs_upd_req || in smc_tx_consumer_update()
755 ((to_confirm > conn->rmbe_update_limit) && in smc_tx_consumer_update()
756 ((sender_free <= (conn->rmb_desc->len / 2)) || in smc_tx_consumer_update()
757 conn->local_rx_ctrl.prod_flags.write_blocked))) { in smc_tx_consumer_update()
758 if (conn->killed || in smc_tx_consumer_update()
759 conn->local_rx_ctrl.conn_state_flags.peer_conn_abort) in smc_tx_consumer_update()
761 if ((smc_cdc_get_slot_and_msg_send(conn) < 0) && in smc_tx_consumer_update()
762 !conn->killed) { in smc_tx_consumer_update()
763 queue_delayed_work(conn->lgr->tx_wq, &conn->tx_work, in smc_tx_consumer_update()
768 if (conn->local_rx_ctrl.prod_flags.write_blocked && in smc_tx_consumer_update()
769 !atomic_read(&conn->bytes_to_rcv)) in smc_tx_consumer_update()
770 conn->local_rx_ctrl.prod_flags.write_blocked = 0; in smc_tx_consumer_update()